Car-door lock.



J. L. ROHR.

CAR DOOR LOCK.

APPLICATION FILED JULY 2. 1915.

1 ,1 58,720. Patented Nov. 2, 1915.

2 SHEETS-SHEET 1.

v 49 & 6 m'" /7 441 I coumnm PLANOGRAI'H CO WASHING'ION, n.c.

J. L. ROHR.

CAR DOOR LOCK.

APPLICATION FILED JULY 2. I915.

Patented Nov. 2, 1915.

2 SHEETS-SHEET 2.

COLUMBIA PLANDGRAPH Co.. WASHINGTON. D. c.

ones.

JOSEPH L; ROHR, 0F LEWISTON, MAINE.

,] can-noon LocK.

Specification of Letters Patent.

Patented Nov. 2, 1915.

1 '0 all whom it may concern 7 V Be it known that I, JOSEP L. ROHR, a citizen of the United States, residing at Lewiston, in the county of Androscoggin and State of Maine, have invented new and useful Improvements in Gar-Door Locks, of which the following is a specification.

' This invention relates to improvements in car door locks, the object being to provide a device of this character of novel construction including among other features a'fran- 'gible seal adaptedrto be broken to effect a release of the lock, with a view of preventing the door from being opened by unauthorized persons without giving evidence of the fact.

Another object of importance resides in the provision of a device of this character, wherein the above mentioned seal in place forms a part of the lock mechanism, thereby preventing the door from being locked subsequent to the breaking of the seal, or until a new seal is operatively associated with the lock mechanism.

Other objects will appear as the nature of the invention is better understood from the following description, wherein the construction, combination and arrangement of parts is fully set forth. 7

In the drawings forming part of this application like numerals of reference indicate similar parts in the several views and wherein :Figure 1 is a view showing the application of the lock. Fig. 2 is aflongitudinal vertical sectional view through the lock showing the operative position of parts. Fig. 3 is a similar view showing the position of parts subsequent to the breaking of the seal. Fig. 4: is a vertical transverse sectional view. Fig. 5 is a horizontal l0ngitudinal sectional view. Fig. 6 is a front end view; 7 a

Referring more particularly to the drawings, the device forming the subject matter of my invention comprises an elongated casing A constructed from any suitable material and including a bottom 5, top 6, end

walls 7, and side walls 8, the casing being adapted to be secured to the body of the car B at one side of the door opening therein by means of suitable fastening elements 9 7 extending through one of the side walls&

The front end wall 7 terminates short of the bottom 5 to provide 'an' opening 10 through which the hasp 11 carried by the door C enters the casing A and is locked therein in the manner to be presently described. Projecting from the door G is a pin 12 adapted to support the hasp 11 in a line withthe opening 10 whereby the hasp will be directed through said opening into the casing when the door C is moved to closed position; 7

Mounted between the side walls 8 in a line with the longitudinal center of the casing A, and adjacent the rear end wall 7 thereof, is a bearing 13 upon which the lever 14 is mounted for pivotal movement, the forward end of which has associated therewith, by means of a slot and pin connection 15, a plunger 16, the latter having the cylindrical upper portion 17 slidably mounted through a suitable opening in the top 6 of the casing and formed with a knob 18, while the lower portion of the plunger is relatively broad and flat as indicated at 19 having its lower edge beveled as at 20. As above stated, the plunger is mounted for reciprocatory movement through the top of the casing, and has its lower portion movable through the guide 21, the latter comprising oppositely disposed substantially U-shaped strips 22 terminally connected in spaced relation to the opposite side walls 8 of the casing in any suitable manner.

Arranged within the casing immediately below the guide 21 is a hopper 23 adapted to support a frangible seal element 24c, which latter is adapted to be inserted within the casing through an elongated transverse slot 25 in the front end wall 7 of the casing, the

lower edgeof the slot being disposed flush with theupper surface of the hopper as clearly shown in Fig. 2. The opposite sides flange 26 depending from one side of the hopper and being secured to the front wall of the casing in any suitable manner, while the flange 27 rises from the opposite side of the hopper and provides an abutment for the seal 24 to limit the insertion of the latter within the casing. The flange 27 terminates to provide the attaching lugs 28 adapted to be secured to the opposite side walls 8 of the casing in any suitable manner.

Now it will be notedthat when the frangible element 24: is positioned within the casing, the element is engaged by the plunger 16, thereby forming a support for the latter, and the plunger by reason of itsassociation With the lever in turn holds the forward'end of the lever normally in elevated position,- While the opposite end ofw'theleveer is main,- tained in close proximity to the bottom 5. The'opposite end of the lever is formedivith a depending offset portion 29 having its under face suitably recessed as at 30"for -the ing, thereby effectively locking the hasp Within the casing .as Well as the .door in closed position. In this position'of parts a flange 35 formed upon the hasp 11 bears against the vfront end Wall 7 of:thecasing and closes the transverse slot 25 therein, whereby access to the frangible sealQ l is prohibited'and the-same Wholly concealed from view. ,Manifestly in this position-of the parts thedoor cannot be opened until the keeper 31 is moved out of engagement with the hasp '11, this being accomplished by depressing the plunger '16 and thereby rocking thellever upon itsbearing 13. During this operation the zfrangible seal a 24 "is broken by the plunger 16 and the broken particles of glass or other material vfrom Which itheqseal isconstructed are discharged from the casing through the hopper23 and the openings 36 and-37 in the hasp and hottomc5 of the casing respectively,rthe-opening 36 in thehasp being brought into alinement with the opening 37 in the bottom of the casing upon initialassociation of (the parts. Subsequent to the breaking ofthe seal 2% the forwardend of the lever together with theplunger 16 assume the position illustrated in Fig. 3 and areheld :in this position under-the influence of the spring 38 thereby elevating the oppositeend ofthe lever and vpermitting the door tobe opened thereby withdrawing the hasp from :the casing. In this position of,parts the plunger 'closes both the transverse slot 25 and the opening .10 in the front Wall of the casing sothat the hasp 11 cannot-be inserted 'within'the casing and locked therein until a new seal is operatively positioned upon the hopper 23. The lock is very simple in its construction, and yet durable and easily manipulated in the vmanner :hereinabove described. a 7

.It is believed Ethlt from the foregoing ideseri-ption then'ature and advantages of the invention will be thoroughly understood Without requiring aimoreee xtended explanation'antl therefore the samejhas been omitted. -What is claimed is A look -2eomp'rising a casing, ahasp adapted to enter the'oasing through one. end-thereof, a pivoted lever arranged With-' in the casing, a frangible element support ingthe lever in operative position for f'lock- .in-g engagement with the hasp, means for destroying said element to effect a release of said lever, and means-for holding .sald *lever in inQperative position subsequent to :the rew lease thereof.

.2. A, look comprising a casing, ajhasp adapted tto ;-\en-terkthe casing through one end thereof, (a pivoted lever arranged -vvithin the casing, and .a frangiblelelernent. supporting said-lever in operative position for locking engagement with said hasp.

-3. A look .eomprising a casing, a hasp adapted :to (enter said casing through one end. thereof,; a levergpivotallymounted Within the-casing, affrangible element supporting said lever iniioperativegposition forflocking engagement with said 'h asp, and ,a

plunger associated with the lever f-fpl de stroying said; element ;.to effect (a release of said-lever. V a 1 A. .A look comprising (afic-asing, a hasp adnptedto en-terithe casing'through one end thereof, a lever pivotally-mounted-; ithin said casing, .a plunger associated with said 1 lever and promoting from said jcasing, a

guide for :said phmger, a frangible element arranged within said casing beloives-aidguide and fornnng a support for .sa1d p1unger.

whereby said plunger is held an (operative posltion for engagement with said hasp,"and said plunger ,heing radapted .to destroy said lever.

5,.-A- lock comprising a -cas1ng,vi a .hasp

adapteditoenter the casingzthrough one end Wall thereof, :said Wall :having a transverse slot therein, a lever pivotally mountedwithin the casing, a plunger associated-withsaid lever, a frangible-elementadapted tobeiinsent-ed Within the "casing through said slot and supportedibelow said plunger; said element forming a z-supportfor said plunger whereby said lever is held in operative pa 7 sition for; engagement with said hasp,

means. fOIHGlOSlHgiSAld slot, andrsaid plunger being adapted to .destro-y said frangible ele .ment to srelease said lever. r

6. A look comprising a J-easingfa hasp ad'apltedto enter the easing through one end wall thereof, said all having a transverse slot therein, -a lever ,piVota-lly mounted With- :in thecasing, .-a plunger associated with said lever, -a frangible element adaptedto Joe :in-

serted ithin the casing throughsaid-slot and supported below said plunger, 1 said element forming a support for saidiplunger rec frangible-elementitoeefiect .a releaseof said whereby said lever is held in operative position for engagement with the hasp, and said hasp being so formed to close said slot when arranged Within the casing.

7. A look comprising a casing, a hasp adapted to enter the casing through one end wall thereof, said end wall having a transverse slot therein, a lever pivotally mounted within the casing, a frangible element adapted to be inserted within the casing through said slot, a support for said element, a plunger associated with said lever for engagement with said element whereby said lever is held in operative position for engagement with the hasp, a flange on said hasp for closing the slot in the front wall of the casing, and said plunger being adapted to destroy the frangible element to a release of the lever.

8. A look comprising a casing, a hasp adapted to enter said casing through one end thereof and having an opening for registry with an opening in the bottom of said casing, a hopper arranged within the easing in a line with said openings, a lever pivotally mounted in the casing, a plunger as sociated with said lever, a frangible element insertible through a slot in the casing and supported upon said hopper and forming a support for said plunger whereby the lever is held in operative position for engagement With said hasp, and said plunger being adapted to break said element to a release of said lever, whereupon the broken particles of said element are discharged from the casing through the hopper and said openings.

In testimony whereof I affix my signature in presence of two witnesses.

JOSEPH L. ROHR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

